UPPER AIR CALCULATIONS AND PLOTTING (Ver 5.52-LINUX-X11) Current filename: /home/data/upa/2025101300.upa.cvt Date: 0000Z 13 OCT 25 Searching for SBTT... Searching the city database file for: SBTT ... Date:0000Z 13 OCT 25 Station: SBTT WMO ident: 82411 Latitude: -4.25 Longitude: -69.94 Elevation: 85.00 ------------------------------------------------------------------------------- LEV PRES HGHT TEMP DEWP RH DD WETB DIR SPD THETA THE-V THE-W THE-E W mb m C C % C C deg knt K K K K g/kg ------------------------------------------------------------------------------- 0 1000 72 100 2 SFC 999 85 25.0 22.0 83 3.0 22.9 100 2 298.2 301.3 296.0 347.4 16.89 2 968 362 26.6 21.6 74 5.0 23.0 176 3 302.6 305.7 297.3 352.9 17.02 3 925 761 24.2 19.5 75 4.7 20.9 75 5 304.1 306.9 296.7 350.5 15.61 4 875 1246 20.8 18.6 87 2.2 19.2 16 7 305.4 308.3 297.1 352.1 15.60 5 850 1498 20.6 13.6 64 7.0 15.9 10 10 307.7 309.9 295.0 342.8 11.60 6 846 1539 20.6 13.6 64 7.0 15.9 10 10 308.1 310.3 295.1 343.4 11.65 7 759 2466 13.4 11.5 88 1.9 12.1 1 9 310.1 312.2 295.4 344.6 11.31 8 733 2759 11.8 9.5 86 2.3 10.3 13 9 311.4 313.4 295.0 342.9 10.23 9 700 3144 9.6 5.9 78 3.7 7.3 30 9 313.1 314.7 294.1 339.1 8.35 10 640 3885 5.8 -0.2 65 6.0 2.5 57 11 316.9 318.1 293.2 335.7 5.90 11 617 4184 3.4 1.6 88 1.8 2.4 60 12 317.5 318.9 294.2 339.7 6.98 12 598 4438 2.8 -3.2 65 6.0 -0.3 55 14 319.7 320.6 293.3 336.0 5.06 13 525 5484 -2.9 -5.2 84 2.3 -4.0 20 9 324.9 325.9 294.6 341.3 4.95 14 500 5870 -5.9 -6.3 97 0.4 -6.1 10 7 325.8 326.8 294.7 341.7 4.78 15 488 6060 -7.1 -7.3 98 0.2 -7.2 27 7 326.6 327.5 294.7 341.7 4.53 16 473 6304 -7.7 -10.5 80 2.8 -8.9 26 6 328.8 329.6 294.6 341.1 3.64 17 434 6969 -12.1 -12.8 95 0.7 -12.4 13 5 331.4 332.1 295.0 342.7 3.29 18 400 7590 -16.1 -17.7 87 1.6 -16.7 360 3 334.1 334.5 294.9 342.4 2.38 19 398 7628 -16.1 -18.2 84 2.1 -16.8 357 3 334.5 335.0 295.0 342.6 2.29 20 395 7684 -15.9 -19.1 76 3.2 -17.0 354 3 335.5 336.0 295.1 343.1 2.14 21 323 9163 -26.3 -28.6 81 2.3 -26.8 16 1 341.0 341.3 295.6 345.2 1.12 22 307 9526 -29.3 -30.3 91 1.0 -29.5 36 2 341.8 342.0 295.7 345.6 1.00 23 300 9690 -30.5 -32.6 82 2.1 -30.9 45 3 342.4 342.6 295.6 345.5 0.82 24 268 10482 -36.5 -40.6 66 4.1 -37.0 82 6 344.9 345.0 295.8 346.5 0.41 25 264 10586 -37.1 -45.1 43 8.0 -37.9 87 7 345.5 345.5 295.8 346.5 0.26 26 256 10798 -39.1 -43.0 66 3.9 -39.5 97 7 345.6 345.7 296.0 346.9 0.33 27 250 10960 -40.1 -44.5 63 4.4 -40.5 105 8 346.4 346.5 296.1 347.6 0.29 28 200 12440 -52.9 -58.9 48 6.0 -53.1 135 10 349.0 349.0 296.5 349.3 0.07 29 195 12603 -54.3 -59.3 54 5.0 -54.4 135 10 349.3 349.3 296.5 349.6 0.07 30 186 12904 -56.9 -63.9 41 7.0 -57.1 134 10 349.8 349.9 296.6 350.0 0.04 31 165 13651 -63.1 -66.1 67 3.0 -63.1 110 11 351.7 351.7 297.0 351.8 0.03 32 157 13955 -65.7 -76.7 20 11.0 -65.8 75 14 352.3 352.3 297.1 352.3 0.01 33 150 14230 -68.3 -76.3 31 8.0 -68.4 60 14 352.4 352.4 297.1 352.5 0.01 34 143 14515 -70.5 -74.6 55 4.1 -70.5 78 12 353.4 353.4 297.4 353.5 0.01 35 114 15828 -79.7 -84.7 43 5.0 -79.7 85 14 360.0 360.0 298.7 360.0 0.00 36 106 16244 -75.7 -84.7 23 9.0 -75.7 43 13 375.2 375.2 301.5 375.2 0.00 37 101 16523 -76.7 -85.7 23 9.0 -76.7 289 11 378.5 378.5 302.0 378.5 0.00 38 100 16580 -77.1 -86.1 22 9.0 -77.1 275 11 378.8 378.8 302.1 378.8 0.00 39 94 16939 -73.7 -84.7 17 11.0 -73.7 284 13 392.2 392.2 304.1 392.2 0.00 40 81 17799 -78.7 -86.7 26 8.0 -78.7 270 18 399.0 399.0 305.0 399.0 0.00 41 70 18640 -74.5 -87.5 12 13.0 -74.6 285 28 425.0 425.0 308.3 425.0 0.00 42 67 18895 -72.9 -87.9 9 15.0 -73.0 270 28 433.8 433.8 309.3 433.8 0.00 43 62 19347 -75.1 -89.1 10 14.0 -75.2 283 27 438.7 438.7 309.7 438.7 0.00 44 50 20610 -69.3 -90.3 3 21.0 -69.5 100 24 480.2 480.2 313.5 480.2 0.00 45 42 21654 -68.1 -91.1 2 23.0 -68.4 100 26 507.7 507.7 315.5 507.7 0.00 46 40 21951 -62.7 -89.7 1 27.0 -63.2 104 32 528.4 528.4 316.8 528.4 0.00 47 33 23127 -66.1 -90.1 2 24.0 -66.5 89 54 549.3 549.3 318.1 549.3 0.00 48 30 23710 -62.3 -89.3 2 27.0 -63.0 90 45 574.8 574.8 319.4 574.8 0.00 49 22 25679 -49.1 -83.1 1 34.0 -52.6 100 54 667.4 667.4 323.3 667.6 0.02 50 20 26300 -50.9 -83.9 1 33.0 -54.1 105 59 680.4 680.4 323.8 680.5 0.02 51 18 26986 -50.9 -83.9 1 33.0 -54.4 100 61 701.2 701.2 324.5 701.3 0.02 TRP 114 15828 -79.7 -84.7 43 5.0 -79.7 85 14 360.0 360.0 298.7 360.0 0.00 WND Sounding variables and indices 1000-500 mb thick: 5798.00 m Freezing level: 562.14 mb = 4952.20 m = 16247.17 ft Wetbulb zero: 599.97 mb = 4411.66 m = 14473.77 ft Precipitable water: 2.25 inches Sfc-500 mean rel hum: 77.50 % Est. max temperature: 34.59 C = 94.26 F Sfc-Lift cond lev (LCL): 956.62 mb = 465.91 m = 1528.56 ft T: 25.98 C 700-500 lapse rate: 5.69 C/km ThetaE index: 9.30 C Layer 850.0- 846.0 mb Conv cond level (CCL): 815.92 mb = 1848.08 m = 6063.18 ft Mean mixing ratio: 16.31 g/kg Conv temperature: 35.57 C = 96.02 F Cap Strength: 2.77 C Lifted Index: -3.34 C Risk: Severe thunderstorms possible Lifted Index @300 mb: -2.69 C Lifted Index @700 mb: -1.26 C Showalter Index: -0.24 C Risk: Thunderstorms probable Total Totals Index: 46.00 C Risk: Scattered moderate thunderstorms Vertical Totals Index: 26.50 C Cross Totals Index: 19.50 C K Index: 36.40 Risk: > 80 % chance of thunderstorms Sweat Index: 190.20 Risk: None Energy Index: -0.25 Risk: Scattered severe thunderstorms Parcel Indices Parcel: using 100 mb layer CAPE (B+): 898.13 J/kg Max Up Vert Vel: 42.38 m/s Conv Inhibition (B-): 95.11 J/kg Cap Strength: 2.65 C Lift Cond Lev (LCL): 889.55 mb = 1102.38 m = 3616.69 ft Lev Free Conv (LFC): 764.55 mb = 2403.74 m = 7886.20 ft Equ Level (EL): 174.55 mb = 13300.11 m = 43635.01 ft B at Equ Level: 898.06 J/kg Max Parcel Lev (MPL): 94.55 mb = 16905.28 m = 55462.83 ft Wind level data Storm motion: 61 at 7 knt ---------------------------------------------------------- TRUE/GROUND REL | STORM REL LEV P H DIR SPD U V | DIR SPD U V mb m knt m/s | knt m/s ---------------------------------------------------------- 0 999 85 100 2 -2.0 0.3 | 228 5 4.0 3.6 1 974 305 195 3 0.8 2.9 | 228 9 6.7 6.1 2 941 610 95 4 -4.0 0.3 | 209 4 1.9 3.6 3 925 761 75 5 -4.8 -1.3 | 210 2 1.1 1.9 4 909 914 25 2 -0.8 -1.8 | 255 5 5.1 1.4 5 850 1498 10 10 -1.7 -9.8 | 328 8 4.2 -6.6 6 847 1524 10 10 -1.7 -9.8 | 328 8 4.2 -6.6 7 789 2134 5 11 -1.0 -11.0 | 327 9 5.0 -7.7 8 761 2438 360 9 -0.0 -9.0 | 314 8 5.9 -5.8 9 700 3144 30 9 -4.5 -7.8 | 343 5 1.4 -4.6 10 633 3962 60 11 -9.5 -5.5 | 58 4 -3.6 -2.3 11 609 4267 60 13 -11.3 -6.5 | 58 6 -5.3 -3.3 12 587 4572 50 15 -11.5 -9.6 | 41 8 -5.6 -6.4 13 565 4877 35 12 -6.9 -9.8 | 8 7 -1.0 -6.6 14 500 5870 10 7 -1.2 -6.9 | 308 6 4.7 -3.7 15 486 6096 30 7 -3.5 -6.1 | 320 4 2.4 -2.8 16 400 7590 360 3 -0.0 -3.0 | 268 6 5.9 0.2 17 366 8230 315 3 2.1 -2.1 | 262 8 8.0 1.1 18 337 8839 0 0 -0.0 -0.0 | 241 7 5.9 3.2 19 300 9690 45 3 -2.1 -2.1 | 254 4 3.8 1.1 20 250 10960 105 8 -7.7 2.1 | 161 6 -1.8 5.3 21 200 12440 135 10 -7.1 7.1 | 174 10 -1.1 10.3 22 189 12802 135 10 -7.1 7.1 | 174 10 -1.1 10.3 23 171 13411 125 11 -9.0 6.3 | 162 10 -3.1 9.5 24 163 13716 105 11 -10.6 2.8 | 142 8 -4.7 6.1 25 155 14021 65 15 -13.6 -6.3 | 68 8 -7.7 -3.1 26 150 14230 60 14 -12.1 -7.0 | 59 7 -6.2 -3.8 27 148 14326 60 13 -11.3 -6.5 | 58 6 -5.3 -3.3 28 140 14630 90 12 -12.0 0.0 | 118 7 -6.1 3.2 29 126 15240 105 11 -10.6 2.8 | 142 8 -4.7 6.1 30 120 15545 110 19 -17.9 6.5 | 129 15 -11.9 9.7 31 114 15828 85 14 -13.9 -1.2 | 104 8 -8.0 2.0 32 114 15850 100 24 -23.6 4.2 | 113 19 -17.7 7.4 33 108 16154 85 14 -13.9 -1.2 | 104 8 -8.0 2.0 34 102 16459 305 12 9.8 -6.9 | 283 16 15.8 -3.7 35 100 16580 275 11 11.0 -1.0 | 262 17 16.9 2.3 36 97 16764 275 11 11.0 -1.0 | 262 17 16.9 2.3 37 92 17069 290 15 14.1 -5.1 | 275 20 20.0 -1.9 38 78 17983 265 19 18.9 1.7 | 259 25 24.9 4.9 39 71 18593 275 31 30.9 -2.7 | 269 37 36.8 0.5 40 70 18640 285 28 27.0 -7.2 | 277 33 33.0 -4.0 41 67 18898 270 28 28.0 -0.0 | 265 34 33.9 3.2 42 64 19202 285 29 28.0 -7.5 | 277 34 33.9 -4.3 43 60 19507 280 25 24.6 -4.3 | 272 31 30.5 -1.1 44 57 19812 260 26 25.6 4.5 | 256 32 31.5 7.7 45 54 20117 270 22 22.0 -0.0 | 263 28 27.9 3.2 46 52 20422 260 22 21.7 3.8 | 256 28 27.6 7.0 47 50 20610 100 24 -23.6 4.2 | 113 19 -17.7 7.4 48 49 20726 125 10 -8.2 5.7 | 166 9 -2.3 9.0 49 44 21336 70 29 -27.3 -9.9 | 73 22 -21.3 -6.7 50 42 21641 100 25 -24.6 4.3 | 112 20 -18.7 7.6 51 40 21946 105 31 -29.9 8.0 | 115 27 -24.0 11.2 52 38 22250 85 52 -51.8 -4.5 | 88 46 -45.9 -1.3 53 36 22555 75 50 -48.3 -12.9 | 77 43 -42.4 -9.7 54 33 23165 90 54 -54.0 0.0 | 94 48 -48.1 3.2 55 30 23710 90 45 -45.0 0.0 | 95 39 -39.1 3.2 56 28 24079 85 44 -43.8 -3.8 | 89 38 -37.9 -0.6 57 20 26213 105 57 -55.1 14.8 | 110 52 -49.1 18.0 58 20 26300 105 59 -57.0 15.3 | 110 54 -51.1 18.5 59 16 27127 95 63 -62.8 5.5 | 99 57 -56.8 8.7 Wind Parameters Mean winds (0-6000m): 31.5 at 9.0 knts Storm direction: 61.5 at 6.7 knts Shear (0-3000m) pos: 1.0 neg: 2.1 tot: 3.1 10-3/s Storm rel Dir Shear (0-3000m): 111.6 deg Storm rel helicity (0-3000m) pos: 16.7 neg: -10.3 tot: 6.4 m^2/s^2 ave: 2.1 10^-3 m/s^2 rel: 0.25 Storm rel vorticity (0-3000m) horiz: 5.1 stream: 1.3 10^-3/s Energy-Hel index: 0.07 Bulk Rich Number: 59.35 Bulk Shear: 15.13 m/s Storm Parameters ------------------------------------------------------------------------------- Depth Mean Inflow| Shear | Helicity | Vorticity AGL Dir Spd Dir Spd| Pos Neg Tot| Pos Neg Tot Ave Rel | Hor Strm m knt knt| 10^-3/s | m^2/s^2 m/s^2 | 10^-3/s ------------------------------------------------------------------------------- 500 148 3 217 7| 2.0 0.0 2.0| 1.4 -6.1 -4.7 -9.4 -0.29| 9.1 -2.6 1000 91 3 218 4| 1.0 2.8 3.8| 5.8 -6.1 -0.3 -0.3 0.13| 8.5 1.1 1500 35 5 283 3| 0.7 3.8 4.5| 12.1 -6.1 6.0 4.0 0.29| 7.7 2.2 2000 20 6 305 5| 0.5 3.1 3.6| 12.1 -6.2 5.9 2.9 0.27| 6.1 1.7 2500 14 7 310 6| 0.6 2.5 3.1| 13.0 -10.3 2.7 1.1 0.19| 5.4 1.1 3000 15 7 314 6| 1.0 2.1 3.1| 16.7 -10.3 6.4 2.1 0.25| 5.1 1.3 4000 26 8 330 5| 1.6 1.6 3.1| 23.2 -10.3 12.9 3.2 0.36| 4.7 1.7 5000 33 9 348 4| 1.3 1.8 3.0| 23.2 -25.4 -2.2 -0.4 0.11| 4.8 0.5 6000 31 9 345 5| 1.2 1.5 2.7| 24.3 -33.2 -8.9 -1.5 0.02| 4.6 0.1 Wrote GIF file: /home/apache/climate/data/raob//SBTT/skewt/SBTT.skewt.20251013.00.gif